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Artificial Urinary Sphincter Placement

Background

A biological urinary sphincter prevents urinary flow via mucosal coaptation, compression, and pressure transmission. An artificial urinary sphincter (AUS) mimics the biological urinary sphincter by providing a competent bladder outlet during urinary storage and an open unobstructed outlet to permit voluntary voiding.

An artificial urinary sphincter is the only device that closely simulates the function of a biological urinary sphincter. Decades of advances in mechanical design, applications of new technology, and lessons learned from clinical experience have inspired notable improvements.

Novel and ingenious in technical design, the AMS 800 (American Medical Systems, Minnetonka, Minn) device has restored the quality of life to thousands of patients plagued by severe stress urinary incontinence. The AMS 800 prosthesis is the most effective, reliable, and durable surgical treatment for men with postprostatectomy urinary incontinence, achieving social continence rates of 75-95%.

For additional information, see the Medscape article Urinary Incontinence Relevant Anatomy. For supplementary information on urinary incontinence in general, see Medscape’s Urinary Incontinence and OAB Resource Center.

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